... physics to describe them and then discusses the complex nature of the refractive index via the interaction of light waves witgh matter. ... <看更多>

The refractive index of a material tells you how to get the wavevector k from the angular frequency ω, via the dispersion relation k=nωc,. ... <看更多>

Meep supports absorption and complex refractive indices (complex ε and/or μ), but these must have dispersion (frequency dependence) in the time- ... ... <看更多>